#ifndef _UNISTD_H
#define _UNISTD_H 1

/* This file intended to serve as a drop-in replacement for
 *  unistd.h on Windows
 *  Please add functionality as neeeded
 */

#include <io.h>
#include <stdlib.h>
/*#include <getopt.h>*/ /* getopt at: https://gist.github.com/ashelly/7776712 */
#include <direct.h>     /* for _getcwd() and _chdir() */
#include <process.h>    /* for getpid() and the exec..() family */

#define srandom srand
#define random rand

/* Values for the second argument to access.
   These may be OR'd together.  */
#define R_OK 4 /* Test for read permission.  */
#define W_OK 2 /* Test for write permission.  */
//#define   X_OK    1       /* execute permission - unsupported in windows*/
#define F_OK 0 /* Test for existence.  */

//#define access _access
#define dup2 _dup2
#define execve _execve
#define ftruncate _chsize
#define unlink _unlink
#define fileno _fileno
#define getcwd _getcwd
#define chdir _chdir
#define isatty _isatty
#define lseek _lseek
/* read, write, and close are NOT being #defined here, because while there are file handle specific versions
 * for Windows, they probably don't work for sockets. You need to look at your app and consider whether to
 * call e.g. closesocket(). */

#define ssize_t int

#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
/* should be in some equivalent to <sys/types.h> */
/*typedef __int8            int8_t;*/
typedef __int16          int16_t;
typedef __int32          int32_t;
typedef __int64          int64_t;
typedef unsigned __int8  uint8_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;

#endif /* unistd.h  */
